A recent broadcast from WFMU's Noise and Syrup show contains two nicely creepy and Infocultish audio tracks.
The show is long, a little over three hours, but you can click through to the tracks in question from the playlist page.
The first one is a spoken word piece, "Isle of the Dead" by Willem De Ridder (from his Snuff album). It starts almost exactly at 1:00, ends around 1:21, and is a weird story about a man exploring a town in search of... well, listen. There are echoes of Ligotti and Cortazar.
The second is an intro to EVP, a recording called Ghost Orchid. There's a history and sketch of the EVP field, followed by some samples. It starts around 2:01, and goes on for a while.
The rest of the >3 hours program is also worth listening to, but is mostly music, rather than spoken word. Those tracks should set the mood nicely.